What is the strangest thing you have found in your Heating as well as A/C's air duct?

Every time the Heating as well as A/C started running, I would hear a odd noise. It sounded like tiny balls rolling on a surface, especially if one was in the sunroom. I searched the entire house, although I still could not find where the noise originated. I eventually gave up as well as called for house services. The first thing was for the Heating as well as A/C professional to find out if the noise was indeed in the conduits, as I suspected, as well as to upgrade to a smart Heating as well as A/C system. When he came, he said that the best cause of action was to do a duct cleaning because then my enjoyable friend and I could remove everything in the ducts. After inspecting my Heating as well as A/C equipment, he said all that was needed for the upgrade was repair as well as a smart thermostat. That was a relief because I thought I would have to upgrade the entire system or the better part; She also showed me all the dirt as well as dust the air filter had trapped as well as told me to increase the frequency at which I upgraded it. She also encouraged me to buy a whole-house air cleaner since the air purification help in the Heating as well as A/C was inadequate to maintain indoor air quality. The air cleaner would ensure that the air quality in the apartment was high. When the Heating as well as A/C contractor was done with all matters concerning air purification in my home, my enjoyable friend and I finally found out what was causing the odd noise. After the cleaning, he discovered three marbles in the conduit leading to the sunroom. I had no idea when or how the marbles ended up in the conduit, although I was cheerful to get rid of the noise as well as dirt.

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